| A | B |
|---|
| element | a pure substance that cannot be separated into simpler substances |
| pure substance | a substance in which there is only one type of particle |
| metals | elements that are shiny and are good conductors of thermal energy and electric current |
| nonmetals | elements that are dull (not shiny) and that are poor conductors of thermal energy and electric current |
| metalloids | elements that have properties of both metals and nonmetals |
| compound | a pure substance composed of two or more elements that are chemically combined |
| mixture | a combination of two or more substances that are not chemically combined |
| distillation | a process that separates a mixture based on the boiling points of the components |
| magnet | can be used to separate a mixture of the elements of iron and aluminum |
| centrifuge | a machine that separates mixtures according to the densities of the components |
| solution | a mixture that appears to be a single substance but is composed of particles of two or more substances that are evenly distributed. |
| homogeneous mixtures | a mixture that has the same appearance and properties all throughout |
| solute | the substance that is dissolved |
| solvent | the substance in which the solute is dissolved |
| soluble | able to dissolve |
| insoluble | unable to dissolve |
| concentration | a measure of the amount of solute dissolved in a solvent |
| solubility | the amount of solute needed to make a saturated solution using a given amount of solvent at a certain temperature |
| saturated solution | a solution that contains all of the solute it can hold at a given temperature |
| unsaturated solution | a solution that contains less solute than it can hold at a given temperature |
| suspension | a mixture in which particles of a material are dispersed throughout a liquid or gas but are large enough that they settle out |
| heterogeneous mixtures | a mixture where the different components are easily seen |
| colloid | a mixture in which the particles are dispersed throughout but are not heavy enough to settle out |
